Exclude pragma from is_dml logic and implicit transaction.

src/statement.c

@@ -104,7 +104,8 @@ int pysqlite_statement_create(pysqlite_Statement* self, pysqlite_Connection* con
                             PyOS_strnicmp(p, "alter", 5) &&
                             PyOS_strnicmp(p, "analyze", 7) &&
                             PyOS_strnicmp(p, "reindex", 7) &&
-                            PyOS_strnicmp(p, "vacuum", 6));
+                            PyOS_strnicmp(p, "vacuum", 6) &&
+                            PyOS_strnicmp(p, "pragma", 6));
             break;
         }
     }

test/transactions.py

@@ -21,7 +21,7 @@
 #    misrepresented as being the original software.
 # 3. This notice may not be removed or altered from any source distribution.
 
-import os, unittest
+import glob, os, unittest
 from sqlcipher3 import dbapi2 as sqlite
 
 def get_db_path():
@@ -212,6 +212,14 @@ class DMLStatementDetectionTestCase(unittest.TestCase):
 
     Use sqlite3_stmt_readonly to determine if the statement is DML or not.
     """
+    def setUp(self):
+        for f in glob.glob(get_db_path() + '*'):
+            try:
+                os.unlink(f)
+            except OSError:
+                pass
+    tearDown = setUp
+
     @unittest.skipIf(sqlite.sqlite_version_info < (3, 8, 3),
                      'needs sqlite 3.8.3 or newer')
     def test_dml_detection_cte(self):
@@ -268,6 +276,13 @@ class DMLStatementDetectionTestCase(unittest.TestCase):
         conn.execute('vacuum')
         self.assertFalse(conn.in_transaction)
 
+    def test_dml_detection_vacuum(self):
+        conn = sqlite.connect(get_db_path())
+        conn.execute('pragma journal_mode=\'wal\'')
+        jmode, = conn.execute('pragma journal_mode').fetchone()
+        self.assertEqual(jmode, 'wal')
+        self.assertFalse(conn.in_transaction)
+
 
 def suite():
     default_suite = unittest.makeSuite(TransactionTests, "Check")